KCB/2CY series mini gear oil pumps
KCB/2CY series mini electric gear oil pumps Application:1.The pump is suitable to transport various lubrication liquid at temperature not higher than 70°c.If temperature is up to 200°c,ant...

Product Summary

A gear pump uses the meshing of gears to pump fluid by displacement,and the low gear pump is one of this type.They are one of the most common types of pumps for hydraulic fluid power applications. Gear pumps are also widely used in chemical installations to pump fluid with a certain viscosity. There are two main variations: external gear pumps and internal gear pumps.External gear pumps,which use two external spur gears, and internal gear pumps which use an external and an internal spur gear. Gear pumps are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution. Some gear pumps are designed to function as either a motor or a pump.

Theory of operation about is when the gears rotate they separate on the intake side of the pump, creating a void and suction which is filled by fluid. The fluid is carried by the gears to the discharge side of the pump, where the meshing of the gears displaces the fluid. The mechanical clearances are small— in the order of 10 μm. The tight clearances, along with the speed of rotation, effectively prevent the fluid from leaking backwards.The strict design of the gears and houses make it avaliable to be allowed for very high pressures and have the ability to pump highly viscous fluids.

Many variations exist, which include the helical and herringbone gear sets (instead of spur gears), lobe shaped rotors similar to Roots Blowers (commonly used as superchargers), and mechanical designs that allow the stacking of pumps. The most common variations are shown below (the drive gear is shown blue and the idler is shown purple).

Gear pump KCB is suitable to transfer the liquid of temperature less than 150℃, viscosity less then 1500cst, or the similar liquid.The gears are made by hardness face. The relief valve is in the pump. In order to protect the matching motor.